DragonFly BSD
DragonFly bugs List (threaded) for 2004-09
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Re: lost with booting

From: "Simon 'corecode' Schubert" <corecode@xxxxxxxxxxxx>
Date: Wed, 8 Sep 2004 10:56:05 +0200

okay. this means we should definitely break after a BTX error and *not* somehow return to business (I've seen a iret somewhere). maybe *then* we can track the issue.

somehow it seem that *either* esp/ss gets shifted to an area that is full of 0xff *or* something overflows and kills the whole stack. Or am I on the wrong track?


On 08.09.2004, at 08:22, Jeroen Ruigrok/asmodai wrote:

-On [20040907 23:52], Matthew Dillon (dillon@xxxxxxxxxxxxxxxxxxxx) wrote:
I can't make heads or tails of it. All I can think of is that maybe
you are running a mix of different types of boot code?

I now know for 100% certainty I haven't gotten a mix.

Each and every time I made sure bootblocks were installed.
I also used fdisk with p 2 0 0 0 to remove the partition before I recreated
it with fdisk and p 2 165 255996720 142294320.

If you are trying to boot a dragonfly slice, you must have dragonfly
boot1/boot2 blocks installed on that slice. That is, you have to proper
disklabel the slice, for example:

disklabel -B ad0s2

Even used disklabel -Bi ad0 and supplied the information from my disk (which
is set to auto in BIOS, which is CHS - 65525/16/255, LBA being

In the past we have found that 'garbage' in the slice can screw up
booting, so to be totally safe I'd blow it away completely and reinstall.

	dd if=/dev/zero of=/dev/ad0s2 bs=32k count=16
	disklabel -r -w ad0s2 auto
	disklabel -B ad0s2
	... reinstall dragonfly from scratch on that slice ...

Same issues.
DF just refuses to boot.
It gets as far as printing - and then scrolls a BTX error/dump and resets
just as fast, only because I see the remnant glow on the monitor I know it
said BTX halted.

Jeroen Ruigrok van der Werven <asmodai(at)wxs.nl> / asmodai / kita no mono
Free Tibet! http://www.savetibet.org/ | http://www.tibet.nu/
http://www.tendra.org/ | http://www.in-nomine.org/
To the dull mind nature is leaden. To the illumined mind the whole world
burns and sparkles with light...

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